Modern Sonic in Sonic 2

Modern Sonic is a playable character in Sonic 2, which is a classic 2D platformer game released in 1992 for the Sega Genesis console. However, Modern Sonic was not originally included in the game, as he was introduced much later in the Sonic franchise.

Modern Sonic was first introduced in Sonic Adventure, which was released for the Sega Dreamcast in 1998. He is a sleeker and more stylish version of Sonic, with a spikier hairstyle, green eyes, and more athletic abilities. Modern Sonic's gameplay is also different from the classic Sonic, as he has a boost ability that allows him to move faster and overcome obstacles.

In Sonic 2, Modern Sonic can be played using a mod called Sonic 2 HD, which was developed by a group of fans. This mod updates the graphics and audio of the original game, and also includes Modern Sonic as a playable character.

Playing as Modern Sonic in Sonic 2 feels very different from playing as the classic Sonic. Modern Sonic is faster and more agile, with the ability to boost through levels and reach new heights. He can also slide under obstacles and perform homing attacks on enemies.